CVE-2016-9102

Severity: medium (CVSS 6.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-12-09 · updated 2026-06-17
Weakness: CWE-772

Description

Memory leak in the v9fs_xattrcreate function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (memory consumption and QEMU process crash) via a large number of Txattrcreate messages with the same fid number.

Affected products

Debian Linux: 8.0
QEMU: through 2.7.1

References

http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=ff55e94d23ae94c8628b0115320157c763eb3e06
http://www.openwall.com/lists/oss-security/2016/10/27/15
http://www.openwall.com/lists/oss-security/2016/10/30/6
http://www.securityfocus.com/bid/93962
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg01861.html
https://security.gentoo.org/glsa/201611-11
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=ff55e94d23ae94c8628b0115320157c763eb3e06
http://www.openwall.com/lists/oss-security/2016/10/27/15
http://www.openwall.com/lists/oss-security/2016/10/30/6
http://www.securityfocus.com/bid/93962
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html

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